Wilson T2000 Series Mobile CB Trucker Antenna with 5″ Shaft Black Part #- 305-492 T2000 Series is a Stainless Steel Center Loaded Coil 5″ Shaft and 49″ Stainless Steel Whip Rated at 3500 Watts Standard 3/8″ x 24 Chromed Brass Ferrule Larger Coil Housing Allows for Increased Power Handling Patented Low Loss, Air Wound Coil Design Uses 10-Gauge Silver Plated Wire Black Coil is Made of High Impact Engineered Thermoplastic Frequency Range: 26MHz to 30MHz Static Reducing Weather Cap One year warranty New in Retail Packaging Authorized Wilson Dealer